FunTime Cruiseline offers nightly dinner cruises departing from several cities on the East Coast of the United States including Charleston, Baltimore, and Alexandria, Dinner cruise tickets sell for $50 per passenger. FunTime Cruiseline's variable cost of providing the dinner is $30 per passenger, and the fixed cost of operating the vessels (depreciation, salaries, docking fees, and other expenses) is $210,000 per month. The company's relevant range extends to 20,000 monthly passengers. If FunTime Cruiseline has a target operating income of $30,000 per month, how many dinner cruise tickets must the company sell? First, identify the formula, then compute the target sales in units. First, identify the formula, then compute the target sales in units